while nato led forces move to a support role. military commanders are sending some soldiers back to school for a lesson in culture tolerance. nhk world's hideki yui reports. >> reporter: a somber mood takes over at the headquarters of international forces in kabul every sunday during a weekly ceremony to remember troops killed in afghanistan. >> we should know that the heroes we honor today will not have died in vain. amen. >> reporter: some 400 foreign soldiers died last year in afghanistan. at least 61 were victims of insider attacks. that's about 30 times the number five years ago. rising anti-u.s. sentiment in afghanistan is partly to blame. angry afghans took to the streets last february after the burning of copies of the koran by u.s. military personnel. amid deep religious and cultural differences many afghan soldiers feel humiliated by foreigners' behavior. >> translator: if an american soldier crosses his legs, it makes me angry and i tell him to stop. >> reporter: insurgents are taking advantage of such emotions. this t